# A148327 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 5 4 14 5 42 6 127 7 422 8 1435 9 4840 10 17338 11 62435 12 225190 13 837159 14 3126319 15 11765631 16 44783683 17 171773846 18 664157911 19 2575562439 20 10077583703 21 39670893129 22 156317183566 23 620651825974 24 2475390947605 25 9886472711813 26 39689896106424 27 159948432742012 28 645894452400153 29 2616112922938863